<div class="editor-container">
  <%= text_area_tag "diffLines","" ,:size => "12x30", :class => "col-md-12 editor_source diffMode", :label=>_("Template diff"), :'data-file-name' => file_name%>
</div>

<input type="hidden" id="old" value="<%= templates[0] %>" />
<input type="hidden" id="new" value="<%= templates[1] %>" />
